“The metal parts are button-type things and were found in a bin full of other random things.”
“I think I can answer this. Arnold baton holder for police public order kit. One loop clips around the belt, the baton goes through the metal hoop and then the other clip also goes around the baton. I have one myself as I’m a public order trained officer.”
Small porridge crosiers were used like today's whisks.
#21 can also be a washing paddle a hand tool used to do laundry. It is made of wood, shaped like a baker's peel, but with a much shorter handle used as a grip. It was used to beat the wet clothes and linens, pushing out the dirt by hammering the items against the washboard, or against the flat slabs built into the laundry area.
And you know this from experience??